STM32L451REY6TR ARM Microcontrollers – MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 512 kbytes na Flash, DFSDM
♠ Bayanin samfur
| Siffar Samfur | Siffar Darajar |
| Mai ƙira: | STMicroelectronics |
| Rukunin samfur: | ARM Microcontrollers - MCU |
| RoHS: | Cikakkun bayanai |
| Jerin: | Saukewa: STM32L451RE |
| Salon hawa: | SMD/SMT |
| Kunshin / Harka: | Saukewa: CSP-64 |
| Core: | ARM Cortex M4 |
| Girman Ƙwaƙwalwar Shirin: | 512 kB |
| Fadin Bus Data: | 32 bit |
| Ƙimar ADC: | 12 bit |
| Matsakaicin Matsakaicin agogo: | 80 MHz |
| Adadin I/Os: | 52 I/O |
| Girman RAM Data: | 160 kB |
| Samar da Wutar Lantarki - Min: | 1.71 V |
| Ƙarfin Ƙarfafawa - Max: | 3.6 V |
| Mafi ƙarancin zafin aiki: | -40 C |
| Matsakaicin Yanayin Aiki: | + 85 C |
| Marufi: | Karfe |
| Marufi: | Yanke Tef |
| Alamar: | STMicroelectronics |
| Ƙimar DAC: | 12 bit |
| Nau'in RAM Data: | SRAM |
| Nau'in Mu'amala: | CAN, I2C, LPUART, SAI, SPI, UART |
| Adadin Tashoshin ADC: | Tashoshi 16 |
| Adadin Masu ƙidayar lokaci/Masu ƙididdiga: | 11 Mai ƙidayar lokaci |
| Samfura: | MCU+FPU |
| Nau'in Samfur: | ARM Microcontrollers - MCU |
| Nau'in Ƙwaƙwalwar Shirin: | Filasha |
| Yawan Kunshin Masana'anta: | 5000 |
| Rukuni: | Microcontrollers - MCU |
| Sunan kasuwanci: | Saukewa: STM32 |
| Watchdog Timers: | Watchdog Timer, Windowed |
| Nauyin Raka'a: | 0.000526 oz |
♠ Ultra-low-power Arm® Cortex®-M4 32-bit MCU + FPU, 100DMIPS, har zuwa 512KB Flash, 160KB SRAM, analog, audio
Na'urorin STM32L451xx sune masu sarrafa ƙananan ƙarfi-ƙananan ƙarfi dangane da babban aikin Arm® Cortex®-M4 32-bit RISC core wanda ke aiki a mitar har zuwa 80 MHz.Cortex-M4 core yana fasalta madaidaicin madaidaicin ruwa (FPU) wanda ke goyan bayan duk umarnin sarrafa bayanai guda ɗaya na Arm® da nau'ikan bayanai.Hakanan yana aiwatar da cikakken saitin umarnin DSP da naúrar kariyar ƙwaƙwalwar ajiya (MPU) wanda ke haɓaka amincin aikace-aikacen.
Na'urorin STM32L451xx sun haɗa manyan ƙwaƙwalwar ajiya mai sauri (Ƙwaƙwalwar Flash har zuwa 512 Kbyte, 160 Kbyte na SRAM), ƙa'idar ƙwaƙwalwar Quad SPI Flash (akwai akan duk fakiti) da babban kewayon haɓaka I/Os da na'urori masu alaƙa da bas ɗin APB guda biyu. , motocin bas guda biyu na AHB da matrix na bas mai 32-bit multi-AHB.
Na'urorin STM32L451xx sun haɗa hanyoyin kariya da yawa don shigar da ƙwaƙwalwar Flash da SRAM: kariyar karantawa, rubuta kariya, kariyar karanta lambar mallakar mallaka da Firewall.
Na'urorin suna ba da ADC mai sauri 12-bit (5 Msps), masu kwatanta guda biyu, amplifier guda ɗaya, tashar DAC ɗaya, buffer na ciki, ƙaramin ƙarfin RTC, maƙasudin maƙasudin 32-bit mai ƙidayar lokaci ɗaya, 16-bit guda ɗaya. PWM mai ƙidayar lokaci da aka keɓe don sarrafa motar, maƙasudin maƙasudin 16-bit masu ƙidayar lokaci guda huɗu, da masu ƙidayar ƙarancin ƙarfi 16-bit guda biyu.
Bugu da kari, har zuwa tashoshi 21 masu karfin ji suna samuwa.
Har ila yau, sun ƙunshi daidaitattun hanyoyin sadarwa na zamani da ci gaba, wato I2C guda huɗu, SPI uku, USARTs uku, UART ɗaya da UART ɗaya mai ƙarancin ƙarfi, SAI ɗaya, SDMMC ɗaya, CAN ɗaya.
STM32L451xx yana aiki a cikin -40 zuwa +85 °C (+105 °C junction) da -40 zuwa +125 °C (+130 °C junction) zafin jiki ya tashi daga 1.71 zuwa 3.6 V.Cikakken tsari na hanyoyin ceton wutar lantarki yana ba da damar ƙirar aikace-aikacen ƙananan ƙarfi.
Ana goyan bayan wasu kayan wuta masu zaman kansu: shigarwar wadatar mai zaman kanta ta analog don ADC, DAC, OPAMP da masu kwatance.Shigar da VBAT yana ba da damar yin ajiyar RTC da rijistar madadin.
Iyalin STM32L451xx suna ba da fakiti shida daga fakiti 48 zuwa 100-pin.
• Ƙarfin ƙarfi-ƙananan ƙarfi tare da FlexPowerControl
- 1.71 V zuwa 3.6V samar da wutar lantarki
- -40 °C zuwa 85/125 °C kewayon zafin jiki
- 145 nA a cikin yanayin VBAT: wadata don RTC da 32 × 32-bit rajistan ayyukan
- Yanayin rufe 22 nA (filin farkawa 5)
- Yanayin jiran aiki 106 nA (filin farkawa 5)
- 375 nA Yanayin jiran aiki tare da RTC
- 2.05 µA Tsaya 2 yanayin, 2.40 µA tare da RTC
- Yanayin gudu 84 µA/MHz
- Yanayin sayan tsari (BAM)
– 4µs farkawa daga Yanayin Tsaya
- Sake saitin launin ruwan kasa (BOR)
– Interconnect matrix
• Mahimmanci: Arm® 32-bit Cortex®-M4 CPU tare da FPU, Mai haɓakawa na ainihin-lokaci (ART Accelerator™) yana ba da izinin 0-jihar kisa daga ƙwaƙwalwar Flash, mita har zuwa 80 MHz, MPU, 100DMIPS da umarnin DSP
• Alamar aiki
- 1.25 DMIPS/MHz (Drystone 2.1)
- 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
• Ma'aunin makamashi
– 335 ULPMark™ CP maki
– maki 104 ULPMark™ PP
• Tushen agogo
- 4 zuwa 48 MHz crystal oscillator
- 32 kHz crystal oscillator don RTC (LSE)
- Na ciki 16 MHz masana'anta-datsa RC (± 1%)
- Ƙarfin ƙarfi na ciki 32 kHz RC (± 5%)
- Multispeed na ciki 100 kHz zuwa 48 MHz oscillator, LSE da aka gyara ta atomatik (mafi kyau ± 0.25% daidaito)
- 48 MHz na ciki tare da dawo da agogo
- 2 PLLs don agogon tsarin, sauti, ADC
• Har zuwa 83 I/Os mai sauri, mafi yawan 5 V-mai haƙuri
• RTC tare da kalanda HW, ƙararrawa da daidaitawa
• Har zuwa tashoshi masu ƙarfin ƙarfi 21: goyan bayan maɓallin taɓawa, madaidaiciya da firikwensin taɓawa
• Masu ƙidayar lokaci 12x: 1x 16-bit ci-gaba da sarrafa mota, 1x 32-bit da 3x 16-bit manufa gabaɗaya, 2x 16-bit na asali, 2x ƙananan ƙarfin 16-bit masu ƙidayar lokaci (samuwa a Yanayin Tsayawa), 2x masu sa ido, SysTick mai lokaci
• Tunatarwa
- Har zuwa 512 KB Flash banki guda ɗaya, kariyar karanta lambar mallakar mallakar
- 160 KB na SRAM gami da 32 KB tare da duba daidaiton kayan aiki
- Ƙwararren ƙwaƙwalwar Quad SPI
• wadatattun kayan aikin analog (samun mai zaman kansa)
- 1 x 12-bit ADC 5 Msps, har zuwa 16-bit tare da oversampling hardware, 200 µA/Msps
- Tashoshin fitarwa na 1x 12-bit DAC, samfurin ƙarancin ƙarfi da riƙewa
- 1x amplifier mai aiki tare da ginanniyar PGA
- 2x ultra-low-power comparators
- Madaidaicin 2.5 V ko 2.048 V nuni ƙarfin lantarki buffered fitarwa
• 16x hanyoyin sadarwa
- 1 x SAI (serial audio interface)
- 4x I2C FM+ (1 Mbit/s), SMBus/PMBus
- 3x USARTs (ISO 7816, LIN, IrDA, modem)
- 1 x UART (LIN, IrDA, modem)
- 1 x LPUART (Dakatar da farkawa 2)
- 3 x SPIs (da 1 x Quad SPI)
- CAN (2.0B Active) da SDMMC dubawa
- IRTIM (Infrared dubawa)
• Mai sarrafa tashar DMA 14
• Gaskiya bazuwar lamba janareta
• Ƙungiyar lissafin CRC, ID na musamman na 96-bit
• Tallafin haɓakawa: serial debug waya (SWD), JTAG, Trace Macrocell™
